roasted cauliflower and pumpkin soup

Roasted sweet pumpkin turns velvety smooth when blended with hearty cauliflower and creamy oat milk. Fresh ginger adds a punchy brightness while smoked paprika and nutty cumin coax deep, soul soothing flavors into this creamy cauliflower and pumpkin soup.

two bowls of creamy, orange colored pumpkin soup set on a stone surface. the soup is garnished with dots of dark brown pumpkin seed oil, black pepper, and cheesy thyme toast.

Lots of pumpkin recipes call for canned pumpkin, but when possible, I go for the real deal. This little guy we got from The Garlic Farm in the fall and he spent a nice, cozy winter with us, traveling around from one surface in the apartment to another--morbidly enough, getting a wee bit closer to the kitchen with each and every move. 

Eventually, it landed on the kitchen counter and I knew it was time to crack it open. Yes, it is nearly March. Yes we purchased said pumpkin nearly 5 months ago. Yes, it is still good. Winter squash = mind blowing!

The first half of the pumpkin went into a slow cooker stew (which to be honest didn't turn out that great--through no fault of the pumpkin!) and I knew that this half was destined to become some sort of a creamy pumpkin and cauliflower soup with ginger. 

one half of a small pumpkin that has been scooped out.

I find that many pumpkin soup recipes have serious pumpkin pie vibes, with an ingredients list featuring all the usual suspects for a pumpkin-spiced treat. Not the pumpkin cauliflower soup in my house! I use roasted garlic and onions, smoky seasonings, umami-rich chicken stock, and a pinch of spicy cayenne to bring this sweet squash into the savory realm. 

The only thing that could make this any better: some melty thyme & gruyere topped toast for dipping and mopping. Though overall this is a fairly healthy cauliflower and pumpkin soup, make no mistake, this meal is for the soul.

For me, creamy soups are incomplete without a toasty something or other for dunking! Gruyere has a nutty flavor that goes soooo well with pumpkin and it melts nicely atop crusty bread. You can definitely keep this recipe dairy free and forgo the cheesy toast. As I write this, I'm coming off of a months-long low-fat diet thanks to some pesky gallstones--so personally, I'm going for it as I've got a lot of cheese to catch up on.

ingredients for cauliflower and pumpkin soup

various ingredients for cauliflower pumpkin soup arranged on a stone surface. each ingredient bears a corresponding label

ingredient notes & swaps

  • I used half of a small pumpkin which turned into about 6 cups once peeled and cubed. I am a fall girlie through and through so I love cooking with fresh pumpkers, but I realize they are not always available and have some alternatives listed below. Use an equal amount of peeled, cubed butternut squash or kabocha squash (also known as Japanese pumpkin). Fresh pumpkins and squash will produce a more vibrant color and flavor, but you can of course use canned pumpkin in a pinch. Just make sure to grab plain, pure canned pumpkin not pumpkin pie filling which has sugars and spices mixed in.
  • I encourage you to use fresh ginger (as opposed to powdered) here, as it makes a big difference to the flavor of your soup. A good shortcut option, however, is store bought ginger paste! I find these often have great fresh flavor--without the hassle of peeling and chopping that gangly ol' ginger root. You'll usually find ginger paste in a tube or jar in the produce department. 
  • I received this Las Hermanas sweet smoked paprika (plus its hot smoked counterpart!) as a gift years ago and I adore using it. If you like things hot hot hot, by all means use hot smoked paprika instead. 
  • Instead of chicken stock, you can use vegetable broth or stock. Choose one with a nice rich flavor though. Some brands are so watery! I really like the Kitchen Basics and find all of their stocks to be deeply flavored.
  • Make sure to choose unsweetened, unflavored oat milk here. I love Oatley brand--it has a great flavor and a nice creamy texture.
  • I'm all about the condiments and a few drops of dark and rich pumpkin seed oil looks and tastes great on top of this roasted pumpkin cauliflower soup. Toasted sesame oil adds a similar note, or you can skip the drizzle altogether if you prefer to keep things clean.
Print
clockclock iconcutlerycutlery iconflagflag iconfolderfolder iconinstagraminstagram iconpinterestpinterest iconfacebookfacebook iconprintprint iconsquaressquares iconheartheart iconheart solidheart solid icon
a bowl of creamy pumpkin cauliflower soup with roasted pumpkin oil and cracked black pepper for garnish. a torn piece of cheesy thyme toast is dipped into one edge of the soup.

roasted cauliflower and pumpkin soup recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

Roasted sweet pumpkin turns velvety smooth when blended with hearty cauliflower and creamy oat milk. Fresh ginger adds a punchy brightness while smoked paprika and nutty cumin coax deep, soul soothing flavors.

  • Total Time: 1 hour
  • Yield: 6 servings (about 3 quarts) 1x

Ingredients

Units Scale

for the soup:

  • ½ small pumpkin (enough to yield 6 cups cubed)
  • 1 small to medium head cauliflower
  • 1 medium yellow onion
  • 4 cloves garlic
  • 3 tablespoons olive oil, divided
  • salt and freshly ground black pepper, to taste
  • 3 inch knob fresh ginger (enough to yield 2 tablespoons peeled and grated)
  • 1 tablespoon ground cumin
  • 1 tablespoon dried thyme leaves
  • 1 teaspoon smoked paprika
  • ¼ teaspoon ground cayenne
  • 1 quart chicken stock
  • 1 cup oat milk

for the cheesy thyme toast:

  • crusty bread, sliced
  • 1 whole garlic clove, peeled
  • gruyere cheese, shredded
  • fresh thyme leaves

for serving: 

  • roasted pumpkin seed oil (or toasted sesame oil)
  • freshly ground black pepper

Instructions

make the soup:

  1. Preheat your oven to 425℉. Peel and dice the pumpkin. When working with a large round (read: slippery!) item like this, I usually cut it into smaller pieces that are more handleable. Peel the pumpkin pieces using an ordinary vegetable peeler and dice into large chunks.two large pieces of a whole pumpkin that have been hollowed out are resting on a wooden board. one piece has been peeled and there is a standard vegetable peeler nearby.
  2. Prep veggies. Cut the cauliflower into florets. Peel and roughly chop the onion. Peel the garlic cloves, but leave them whole. a baking sheet is filled with peeled and cubed pumpkin, roughly cut onion, peeled garlic cloves, and cauliflower florets.
  3. Toss the diced pumpkin, cauliflower florets, chopped onion, and garlic cloves, with 2 tablespoons of the olive oil (reserve the remaining 1 tablespoon for later). Season with salt and black pepper to taste and salt and arrange in a single layer on a baking sheet. You may have to use 2 baking sheets like I did.the vegetable mixture as mentioned in step 2, now coated with olive oil, salt, and black pepper.
  4. Roast the veggies in the preheated oven for 20-30 mins, giving them a stir and a flip about halfway through cooking. You're looking for the onion and garlic to be softened and for the veggies to develop some deep golden-brown spots. Remove from the oven and set aside.a close up of the vegetable mixture on a baking sheet after it has been roasted in the oven. the vegetables are softened and have areas of golden-brown caramelization.
  5. While the veggies are roasting, peel and grate the fresh ginger. In a large soup pot, heat the remaining 1 tablespoon olive oil over medium heat. Add the grated ginger along with all of the spices: cumin, thyme, smoked paprika, and cayenne. Allow the mixture to cook for about a minute, stirring constantly for one minute until fragrant. It will have a paste-like texture. a close up of a paste-like mixture of olive oil, grated ginger, and spices cooking in the bottom of a soup pot.
  6. Transfer all of the roasted vegetables into the pot with the cooked spice mixture, then add chicken stock, and oat milk.the roasted vegetables from step 4 are added to the liquid in the soup pot. a blue spatula stirs the mixture.
  7. Use an immersion blender on low to start slowly blending the soup, breaking down the large chunks.an immersion blender is being used to puree the mixture in the soup pot. the mixture is part of the way to a creamy consistency, but you can still see some large chunks of vegetables.
  8. Increase the speed and continue blending until very smooth. Taste and adjust seasonings and/or consistency if needed. Keep your soup warm over low heat-stirring occasionally-while you make the cheesy thyme below.a smooth and velvety pumpkin cauliflower soup in a soup pot, being stirring with a blue spatula.

make the cheesy thyme toast and serve:

  1. Choose a nice crusty bread and slice it. Peel a garlic clove, leaving it whole, and shred the gruyere cheese. The thyme did not make it out of my refrigerator in THYME (ha ha ha…) for this photo, but go ahead and strip a few sprigs of their little leaves. Breathe deep. Isn't that the best smell 😌a wooden board with sliced sourdough bread, whole garlic cloves, and a bowl of shredded gruyere cheese on it.
  2. Lightly toast the bread then rub the surface of each slice with a raw whole garlic clove. It sounds weird, I know, but I saw this trick on Rachael Ray's 30 Minute Meals some 20+ years ago and it has stuck with me ever since! Top each toast with some shredded gruyere and a few fresh thyme leaves.shredded cheese and fresh thyme are sprinkled on two oblong slices of bread.
  3. Broil the toasts for a few minutes until the cheese is melted and bubbly. Ladle your roast pumpkin and cauliflower soup into serving bowls and top with roasted pumpkin oil, cracked pepper, and slices of cheesy thyme toast. the cheese has become melted and bubbly and the edges of the bread are golden brown and crisp.

Notes

  • I use an immersion blender to blend the soup, but you can definitely use an upright blender too. When blending something hot in an upright blender, let it cool down a bit as this helps to avoid steam buildup inside the container. Then transfer the warm cooked vegetables and liquids to the blender and secure the lid tightly. Whiz until smooth and return your cauliflower pumpkin soup to the pot to re-warm it. 
  • Author: kelly@crescentmoonkitchen
  • Prep Time: 30 minutes
  • Cook Time: 30 minutes
  • Category: soups
  • Method: stovetop
  • Cuisine: American

Nutrition

  • Serving Size: 2 cups
  • Calories: 170
  • Sugar: 7.9 g
  • Sodium: 356.7 mg
  • Fat: 8.7 g
  • Carbohydrates: 21 g
  • Fiber: 4.5 g
  • Protein: 6.4 g
  • Cholesterol: 0 mg

FAQs

can you freeze this cauliflower and pumpkin soup?

Yes! I froze part of this batch and defrosted and enjoyed it for a quick and soothing dinner several months later 😌 The texture may get a little separated from being frozen, but just whip your trusty blender back out and give it a buzz to bring it back to life.

creamy pumpkin cauliflower soup in a blue bowl with a piece of cheesy toast nearby.

Looking for other quick and comforting dinner ideas? Toss a batch of Crockpot Chicken Legs in your slow cooker for a low-effort, high satisfaction meal!

dig in!

Enjoy & let me know what you think 🌙 💛

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star